A Dual-Level Hysteresis Current Control for One Five-Leg VSI to Control Two PMSMs
A Dual-Level Hysteresis Current Control for One Five-Leg VSI to Control Two PMSMs
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DOI：
10.1109/tpel.2016.2535294
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发表时间：
2017
影响因子：
6.7
通讯作者：
Wei Wang;Jinghao Zhang;M. Cheng
中科院分区：
文献类型：
--
作者：
Wei Wang;Jinghao Zhang;M. Cheng
针对五桥臂驱动系统，提出了一种双电平滞环电流控制（DHCC）方法，即用一个五桥臂电压型逆变器控制两台相同的三相永磁同步电机。为了克服两台永磁同步电机之间的耦合，引入了主从选择原则。具有较大相电流误差绝对值的耦合相被确定为主耦合相，并且公共桥臂的桥臂开关状态被设置为主耦合相的相开关状态。另一方面，四个单独相的相开关状态被分别直接分配给四个单独腿。DHCC的执行过程不需要任何机器参数，增强了系统的鲁棒性。实验结果验证了DHCC的有效性。
A dual-level hysteresis current control (DHCC) is proposed for the five-leg drive system, in which two same three-phase permanent-magnet synchronous machines (PMSMs) are controlled by one five-leg voltage-source inverter. To overcome the coupling of the two PMSMs, the master-slave selection principle is introduced. The coupling phase with the larger absolute value of the phase current error is determined as the master coupling phase and the leg-switch-state of the common leg is set as the phase-switch-state of the master coupling phase. On the other hand, the phase-switch-states of four individual phases are directly assigned to the four individual legs, respectively. The executing process of DHCC does not require any machine parameters, which enhances the system robustness. The effectiveness of DHCC is verified by experimental results.